Theta

Complete Range of Optical Tensiometers /

Contact Angle Meters

Versatility, automation and accuracy

[2] Attension Optical Tensiometers

R² = 0,9796

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Precision made simple

VISUALIZE THE POSSIBILITIES

Attension Optical Tensiometers are used in research,

development and quality control for the study of

surfaces and interfaces. They will help you

characterize your surfaces easily and precisely,

saving you valuable time and money.

The Attension Optical Tensiometer offering enables

a wide range of applications from advanced

research to quick quality control. Thanks to the

versatility, you can get the combination of features

that best fits your needs.

[ APPLICATIONS EXAMPLES ]

Adhesion in compositesFunctional surfaces

Adhesion strength and contact angle correlation for composite development. Data from S. Jarusombuti and N. Ayrilmis, European Journal of Wood and Wood Products, 69 (2011) p 375.

Dynamic contact angle measurement giving additional information about the durability of the coating. Ref.: Zhao et al., Langmuir 28, (2012), pp 6328-6335. Adapted with permission from ACS.

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[3]Attension Optical Tensiometers

Attension Optical Tensiometers

Measurements

Attension Optical Tensiometers can measure:

• Static contact angle • Dynamic contact angle • Surface free energy (SFE)• Surface tension • Interfacial tension • Batch contact angle• Roughness corrected contact angle• Interfacial rheology (viscoelasticity)

Sessile drop

for static contactangle measurementof a liquid droplet

Tilted drop*

for dynamiccontact anglemeasurements

Advancing drop

for dynamiccontact anglemeasurement

Receding drop

for dynamiccontact anglemeasurement

Meniscus

for static contactangle measurementwith a fiber/rod

Captive bubble

for static contactangle measurementof a gas bubble

Pendant drop

for surface andinterfacialtension

Reverse pendant drop

for surface andinterfacialtension

Pulsating drop*

for dilationalinterfacial rheologymeasurement

* available only with Theta Optical Tensiometer

3D Topography*

for roughnesscorrectedcontact angle

Batch sessile drop

for static contactangle measurementsin quality control

Measurement methods

Technology

An optical tensiometer records drop images and automatically analyzes the drop shape. The drop shape is a function of the surface tension of the liquid, gravity and the density and humidity difference between sample liquid and surrounding medium. On a solid, the drop shape and the contact angle also depends on the properties of the solid (e.g. surface free energy, topography). The captured image is analyzed with a drop profile fitting method in order to determine contact angle and surface tension. Surface free energy can be calculated by performing contact angle measurements with several known liquids.

As an optical method, the measurement precision of optical tensiometers depends on the quality of the pictures and the analysis software. Attension Optical Tensiometers utilize a high quality monochromatic cold LED light source to minimize undesirable sample evaporation. Image quality is guaranteed by a high-resolution digital camera, quality optics and the accuracy of the drop fitting method.

[4] Attension Optical Tensiometers

Complete range of measurements

• Static contact angle • Dynamic contact angles • Surface free energy • Surface tension • Interfacial tension • Batch contact angle• Roughness corrected contact angle• Interfacial rheology (viscoelasticity)• High pressure and high temperature

measurements

Full automation

The system can be fully automated, and measurements can be performed easily with a single click.

Versatility and high performance

Theta modularity allows you to choose a system that matches your application precisely – and upgrade it later if needed.

Best-in-class software

OneAttension is an all-inclusive software providing all measurement modes, superior drop shape analysis, continuous drop volume monitoring, live results, and the friendliest user interface available.

Theta is the ultimate Attension contact angle meter enabling full automation and optimal ease of use even for the most demanding industrial and research applications.

Theta Optical Tensiometer

[ PRODUCT RANGE ]

[5]Attension Optical Tensiometers

Theta Modules and Accessories

Attension Theta enables you to tailor your system as you like. Start by designing your standard system:

Level of Automation

• Motorized or manual sample stage

• Motorized or manual liquid dispenser motion

Liquid Dispensing

• Automatic or manual dispensing• Single or multi-liquid dispenser

Complement your system with the modules and other accessories that are needed for your applications:

3D Topography Module

Roughness-corrected contact angle measurements automat-ically with a single click. For eliminating the effect of surface roughness for contact angle results.

High Pressure Chamber

Enables measurements at pressures up to 400 bars and temperatures up to 200 °C. Designed for enhanced oil recovery and supercritical fluid applications.

Pulsating Drop Module – PD 200

Oscillates drop volume for interfacial rheology studies.

Picoliter Dispenser

Dispensing of picoliter-sized droplets for small sample areas and inkjet applications.

Tilting Cradle

For fully automatic dynamic contact angle measurements by the tilted drop method.

Environmental Chambers

To control the measurement environment including the temperature.

For a complete list of accessories, please visit the Theta product page at www.biolinscientific.com/product/theta.

Separate impact from surface chemistry and roughness in coatings and material development. Theta with 3D Topography Module measures them simultaneously in the same spot.

Interfacial tensions between brine/CO2 (triangles) and water/CO2 (squares) as a function of pressure. Measurements performed by Biolin Scientific.

[5]

Fluid

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Theta with 3D Topography Module

Theta with High Pressure Chamber

[ PRODUCT RANGE ]

[6] Attension Optical Tensiometers

Theta Lite Optical Tensiometer

Theta Lite is a compact and robust contact angle meter for simple and precise operations. It fully supports you in your research or quality control when automation is not required.

Accurate measurement of

· Static contact angle· Dynamic contact angles· Surface free energy· Surface tension· Interfacial tension· Batch contact angle

Best-in-class software

OneAttension is an all-inclusive software providing all measurement modes, superior drop shape analysis, continuous drop volume monitoring, live results, and the friendliest user interface available.

Robustness

Theta Lite shows how even manual tensiometers can offer precise dispensing, deposition, and analysis.

Ease of use

Simple and quick operation – widely utilized in quality control and research.

For a complete accessory description, please visit www.biolinscientific.com/product/theta-lite.

[ PRODUCT RANGE ]

[7]Attension Optical Tensiometers

OneAttension software

OneAttension software combines the most intuitive user interface with a high level of functionality. Some of its main features includes:

Best-in-class user interface

The most intuitive user interface is the key for OneAttension. The software is easy to learn, and the logical interface allows even complex measurements to be performed with ease.

Superior analysis accuracy

Subpixel analysis accuracy using the industry-standard Young-Laplace equation, first brought to optical tensiometry by Attension. For the most versatile capability, other methods such as Bashforth-Adams and Polynomial are also included.

Live analysis

The results are shown real-time during the measurement. You can conveniently monitor your results without the need to switch between measurement and analysis tabs.

Full automation

OneAttension supports fully automatic measurements. In order to make your result analysis as convenient and accurate as possible, OneAttension also features automatic baseline detection combined with automatic drop fitting.

Flexibility for every need

OneAttension has been designed to meet the requirements of almost any applications you may have. You can easily adjust measurement parameters to match your specific application needs. Your optimized measurement recipes can then be saved for further use.

Data handling and exporting made easy

Data analysis, plotting, and statistical analysis can all be done with a few clicks to give you accurate results within seconds. All data can easily be exported further to Excel, for example.

Optimal for industrial use

The Batch Sessile Drop measurement makes it simple to measure static contact angle in quality control. Additionally, measurement reports can be created with a few clicks and the user manager conveniently handles all different users – with desired privacy levels.

[ SOFTWARE ]

Intuitive interface

Live analysis

Reporting made simpleAutomatic baseline detection

[8] Attension Optical Tensiometers

Biolin Scientific AB, Box 70379, SE-107 24 Stockholm, Sweden

Visiting address: Klarabergsviadukten 70, House D, floor 8

Phone: +46 31 769 7690, E-mail: info@biolinscientific.com

www.biolinscientific.com

√ : available – : not available/not applicableCA: contact angle ST/IT: surface tension and interfacial tension M: meniscus

*: With extended license**: Only for Theta and Theta LIte

Available Measurements

THETA THETA LITE

Static contact angle √ √

Dynamic contact angle automatic manual

Surface/interfacial tension √ √*

Roughness corrected contact angle √ –

Interfacial rheology √ –

Surface free energy Zisman Plot, OWRK/Extended Fowkes, van Oss Acid-Base, Wu, Neumann’s Equation of State, Schultz 1 and 2

Available Measurement Methods

Sessile drop √ √

Batch sessile drop √ √

Captive bubble √ √

Pendant drop √ √

Reverse pendant drop √ √

Meniscus √ √

Dynamic contact angle automatic manual

Pulsating drop √ –

3D Topography √ –

High pressure √ –

Drop Profile Fitting MethodYoung-Laplace (CA, ST/IT, M) √ √

Bashforth-Adams (ST/IT) √ √

Circular (CA) √ √

Polynomial (CA, M) √ √

System requirementsRecommended system requirements** 2 GHz processor, 2 GB RAM, 120 GB hard disk drive1, 1024 * 768 resolution,

1 USB2 or USB3 port, 1 additional USB3 port required with Theta, 1 additional USB2 port required with 3D Topography Module1SDD hard disk (min. 500 MB/s) needed for high speed recording with Theta

Operating system requirements** Windows 7 & 8 & 10 (32 or 64 bit). Windows

SoftwareProvided Software OneAttension OneAttension

Hardware

Measuring range (°, mN/m) 0...180, 0.01...2000 0...180, 0.01...2000

Accuracy (°, mN/m) ± 0.1, ± 0.01 ± 0.1, ± 0.01

Maximum sample size (mm) UNLIMITED * 95 * 180 (w. stage) UNLIMITED * 50 * 200 (w. stage)

Frame interval 0.33 ms ... 1000 s 6 ms…1000 s

Maximum resolution (pixels) 1984 * 1264 744 * 480

Maximum measuring speed (fps) 3009 160

Camera USB3 digital camera USB2 digital camera

Light source LED based background lighting LED based background lighting

Field of view (diagonal in mm) 1.44...30 3.5...7.5

Dimensions (basic frame) (mm) H 590 * W 200 * L 740 H 310 * W 130 * L 495

Weight (basic frame) (kg) 7.3 5

Power supply (vac) 100...240 100...240

Frequency (Hz) 50...60 50...60

[ SPECIFICATIONS ]

About Us

Biolin Scientific is a leading Nordic instrumentation company with roots in Sweden, Denmark and Finland. Our customers include companies working with pharmaceuticals, energy, chemicals, and advanced materials, as well as academic and governmental research institutes. Our precision instruments help discover better drugs faster, develop better solutions for energy and materials, and perform research at the frontiers of science and technology.

All specifications are subject to change without notice.

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